Question 11 ptsThe drive shaft of a car is subjected to both bending and torsion. The torque, T, is constant at400 Nm and the bending moment has the following cycle parameters: mean moment of Mm= 250 Nm and alternating moment of Ma = 800 Nm.The shaft is forged from high-carbon steel with an ultimate strength Sut = 615 MPa andendurance limit Se' = 307.5 MPa. The reliability must be 90% and the safety factor is nf = 2.7.For the analysis of the stress concentration, assume the proportions shown in the figure and asize factor kb = 0.9. To evaluate the factors kt, kts, q and qs, it is recommended to use Excelspreadsheets. Calculate the first estimate of the minimum shaft diameter (d) in millimetersusing the Goodman criterion.1≥4DIdD/d = 1.33r/d = 0.25r≥ 4 mm (To evaluate q and qs, it is initially recommended r = 4 mm)

To calculate the minimum shaft diameter d using the Goodman criterion, we need to follow these…

Answered: Question 1 1 pts The drive shaft of a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

The length of stroke of a four cylinder four stroke cycle SI engine is1.6 times the diameter of the cylinder. The engine develops 25 kWbrake power at 2450 rpm. Each piston observes a mean effectivepressure of 8.5 bar and the mechanical efficiency is 86%. Find thediameter and stroke length of each cylinder.
A rigid block is supported by two cables having the same diameter of 4 mm. Cable S1 is made of AISI 1050 cold drawn steel with E=200,000 MPa, Sy=580 MPa, and Sult=690 MPa; cable S2 is made of AISI 1020 cold drawn steel with E=200,000 MPa, Sy=390 MPa, and Sult=470 MPa. Determine the maximum number of cycles n3 due to the following history of P.
In the diagram below shows a circula bar , made of AISI 1040 OQT 1300 steel (SU = 600 MPa), is loaded with an axial tensile loading P. Find the modified endurance strength (SE) and the modified fatigue strength (SF) for the bar if D = 36 mm, d = 30 mm, and r = 2.4 mm. Use the number of cycles tofracture to be 5 × 105. Assume that the surface finish factor, kf, is 0.85, the size factor, kS, is 0.85, and the notch sensitivity factor, qn, is 0.75. Use the following equations if needed,
A four cylinder two-stroke petrol engine with stroke to bore ratio 1.2 develops 35 kW brake power at 2,200 rpm. The mean effective pressure in each cylinder is 9 bar and mechanical efficiency is 78%. Determine: Diameter and stroke of each cylinder
If the inertia is 90 lb·ft2 and the speed of the driven shaft is to be increased from 0 to 2,500 rpm in 5 seconds, shaft material is of SAE 4140 with the yield strength of 110,000 lb/in2, find the clutch starting torque in lb·ft. a 191 b 162 c 146 d 128 e 232 Correct Answer is 146
A SAE 1040 cold rolled shaft have a yield point of 70 ksi, a diameter of 60.4 mm, and with a key of ½ x ½ x 7 in. Determine the minimum yield point in the key to transmit the torque of the shaft. (FS = 2, Ss = 0.35Sy)
A connecting rod for an I.C. engine running at 1800 r.p.m. and developing a maximum pressure of 3.15 MPa. The diameter of the piston is 100 mm; mass of the reciprocating parts per cylinder 2.25 kg; length of connecting rod 380 mm; stroke of piston 190 mm and compression ratio 6:1. Take a factor of safety of 6 for the design. Take length to diameter ratio for big end bearing as 1.3 and small end bearing as 2 and the corresponding bearing pressures as 10 MPa and 15 MPa. The density of material of the rod may be taken as 8000 kg/m³ and the allowable stress in the bolts as 60 MPa and in cap as 80 MPa. The rod is to be of I-section for which you can choose your own proportions. Calculate the dimension of I- section of the connecting rod.
An industrial fan running at 600 rpm is driven by a 25kW, 960rpm, induction motor using an open belt drive. The pulley is mounted on the motor shaft of 270mm diameter. Center distance between the two shafts is 1.45 meters and coefficient of friction is 0.35. Assume thickness of belt equal to 6.5 mm and an allowable stress of 2.86MPa for belt material. Calculate the following: a) Angle of lap for both pulleys; b) Length of the belt; and c) Width of the belt (disregard standard size).
A bushed pin type flexible coupling is used to transmit 10 kW power at 720 rpm. The design torque is 150% of rated torque. The keys have square cross-section. The permissible stresses are: For shaft and key material, τ = 66.67 N/mm2 , σc = 200 N/mm2 ; For pin material, τ = 35 N/mm2 , σt = 133 N/mm2 ; For flange material τ = 16.67 N/mm2 . The permissible bearing pressure for rubber bushes is 1 N/mm2. The number of bushes is 4. Design the bushed pin flexible coupling. Explain Axle, Spindle, Counter shaft and line-shaft with their examples .
A bushed pin type flexible coupling is used to transmit 10 kW power at 720 rpm. The design torque is 150% of rated torque. The keys have square cross-section. The permissible stresses are: For shaft and key material, τ = 66.67 N/mm2, σc = 200 N/mm2; For pin material, τ = 35 N/mm2, σt = 133 N/mm2; For flange material τ = 16.67 N/mm2. The permissible bearing pressure for rubber bushes is 1 N/mm2. The number of bushes is 4. Design the bushed pin flexible coupling.
3= Q + & 4qAnrm & Expert Q&A Design a shatt and tiange tor a Diesel engine in which protected type of flange coupling is to be adopted for power transmission. Th following data is availabl : for desig Power of engine = 75 kV speed of engine = 200 r.p.n maximum permissible stres?’ in shaft = 40 MPa; maximum permissible twist in shaft = 1° in length of shaft equal to 30 times the diameter of shaft; maximum torque =125 x mean torque; pitch circle diameter of bolts = 3 x diameter of shaft; maximum permissible stress in bolts = .20 MPa Il O >
Consider the belt drive having a diameter of 150 mm that is mounted on the overhung end of ashaft, 30 mm from the nearest bearing. The stepped shaft is made of steel having Su = 965 MPa(140 ksi). The shaft diameter, d, is 30 mm. The bearing bore, D, is 36 mm. The fillet with amachined surface has a radius, r, of 3 mm. What is the safety factor with respect to eventualfatigue failure of the shaft?

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS